Grating-machine.



Patented lune l2, I900.

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UNITE STATES PATENT OFFICE."

GEORGE MERKEL, OF PHILADELPHIA, PENNSYLVANIA.

GRATlNG-MACHINE.

. SPECIFICATION forming part of Letters Patent No. 651,468, dated June 12, 1900.

v Application filedMay 1, 1897. Serial ITO-634,731. (No model.)

To all whom it may concern:

Be it known that I, GEORGE MERKEL, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Grating- Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to certain improvements in machines for grating cocoanut, and has for its object to provide a simple and economical form of machine which will efiectually accomplish its purpose, as more fully set forth hereinafter.

In the accompanying drawings, Figure 1 is a perspective view of a cocoanut-grating machine constructed in accordance with my invention. Fig. 2 is a sectional elevation of a portion of the same on an enlarged scale. Fig. 3 is a perspective view of one of the grating-bars detached; and Fig. 4 is a sectional elevation of the machine, illustrating a modified form of grating-disk.

Referring to the drawings, A represents a supportingtable formed of a main fixed section a and a hinged section a, the adjacent edges of each section being cut away to form an opening I) for the passage of the gratingdisk. The section a is hinged at c and may be locked to the main section by a thumbscrew 01 or other suitable device. The table is supported on legs or on a receptacle for the grated cocoanut and carries a bearing e, in which is mounted a horizontal shaft G at some distance above the top of the table.

On the shaft G is mounted a grating-disk H, having grating or cutting teeth of any suitable character, the disk being held in place by a nut h and being readily removed when it is necessary to substitute a disk having teeth of a different character. Thus in Fig. 1 the disk has radial slotsi through which project teeth hon a bar K, and in Fig. 4 the teeth are punched in a disk of sheet metal H, as shown. Either of these disks or a disk having teeth of different character may be readily placed on the shaft when required.

The bars K are formed of flat metallic strips provided at one edge with a series of slots it, cut through the bar at less than a right an gle to its face and forming a series of teeth 75, each having a sharp edge on each side, as shown more clearly in Fig. 3, so that they will cut in either direction and the disk may be revolved to the right or to the left. The thickness of the strip in relation to the width of the slots and teeth is such that when the cutter-bar is lying flat and observed at a right angle to the plane of the bar the bar will appear as a solid piece of metal, there being apparently no space between the teeth, and it will in elfect be practically a solid blade, so as to remove all of the face of the material being grated without leaving ridges between the path of the teeth.

Usually the disk is revolved to the right, as indicated by the arrows in Figs. 1 and 2, as this gives the teetha better chance to act; but when pieces of cocoanut too small to be handled are to be grated the disk is revolved inthe opposite direction and the pieces to be ground are placed in a small hopper M. This hopper, which is removable, is curved to conform to the disk and has an inner presserplate m, which is normally acted upon by a spring-pressed adjustable bolt to force the small pieces into contact with the teeth. The lower edge of the presser-plate has teeth m, which prevent movement or shifting of the particles of eocoanut. I

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. A grating-bar for cocoanut-g'rating machines formed of a fiat metallic strip grooved or slit at one side to form a series of teeth, said grooves being inclined at less than a right angle to the plane of the strip so that said teeth will present a sharp edge on one side only, substantially as specified.

2. A grating-bar formed of a flat metallic strip having on its cutting edge a series of spaced teeth separated by inclined grooves so arranged with respect to the bar that the cutting edge will be in effect a solid blade.

3. A grating-bar formed of a flat metallic strip having its edges at a right angle to the plane of the strip there being in one edge of In testimony whereof I affix iny signature said strip a series of slots inclined at less in the presence of two witnesses. than a right angle to the plane of the strip so that on each edge of the strip the teeth will present to the material to be grated one sharp and one blunt edge substantially as specified.

GEO. MERKEL.

Witnesses TAUSIAS ELDRIDGE, ELIAS II. WHITE. 

